Nut-lock.



' NUT LOCK.'

APPLICATON FILED JAN.2. 1912. jnyefgggp h Pilt-@med Api'. 9, 1912.

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NUT-Loox.

Application filed January 2,

To all "tr/0m il? may (zomer/'1.'

Be it known that l, JonN BVVI'NEIL a citizen of the United States` residing at .Fai vette City. in the county ot' Fayette and State of Pennsylvania, have invented new and uset ful linprovements in Nut-Locks, of which t the following' is a specification.

My invention relates to devices tor locking' nuts lo bolts and its object is to provide a device of this character which is cheap simple and reliable.

Referring to the accompanying sheet. ot'v drawing, Figure 1 is a section taken longitndinally ot' the bolt and showing my invention Vapplied thereto, the bolt being'1l partly in side elevation. Fig'. 2 is an end e'exation of a bolt with my invention thereon. Fig'. 3 is a side view ot' the locking nut and lt`ig. #1, a side view ot' the locked nut.l Fig. 5 is a perspective view of the locking catch or dog.

Un the drawing, 1 represents a bolt having its body extending,r through the two pieces otl material 2. ll`he head 3 of the bolt bears on the washer 1 which engages the outer 'tace ot' the right-hand piece The threaded end ot' the bolt extends beyond the outer face ot' the lett-hand piece 2. 'l.`he nut, is screwed on the threaded end ot the bolt and into engagement with the lett-hand piece 2. The outer end of the mit 5 is reduced in dian-icter, as shown at (3, andthe reduced end is threaded exteriorly to receive the locking-nut 7 havingV its inner end interiorly threaded to correspond to the threads on the reduced end or extension The outer portion of the locking-nut has an axial Unthreaded opening1 8 somewhat larger than the threaded openingr at the inner end thereof, the Unthreaded opening' extending inwardly to the threaded openine'. The sides ot the locking-nut are provided with the slots or ways 5) extending' at right angles with-the axis of the holt, and locking-nut and communicating' with the opening;- S. At each end otl each slot. or way 5) I provide a notch 10 extending into the outer wall ol the same. l

I provide a catch or dog' 'lor preventingr the. locking-uut fl' from `rotating on the bolt. This catch or dorev has the annular body 11 having its internal diameter ot afsiZe to al- Specication of Letter Patent.

low the body to travel on the threaded end 1912. Serial No. 668,811.

ot the bolt and in the opening 8. The body 11 has two inwardly projecting lugs 12 having' travel in the longitudinal grooves 13 in the sides of the bolt. The body 11 has also two outwardly-extending lugs or projections let which may pass through the slots or pas' sages 15 extending from the omer eno of the locking-nut. into the central portion otthe slots 9. A

16 is a coiled spring lying between the bottom of the opening 8 and the body 11'ot the atch.

After the nut 5 has been turned down on the adjacent piece 2 the locking-nut 7 is screwed down on-the nut 5; or both the nut and the locking nut are screwed down together on the bolt. stand so that the locking piece or catch can be applied, that is, so that, when the lugs 12 are arranged to travel along the grooves 13. the projections l-t will pass through the slots or passages 15. The spring 16 having been first pnt into the opening?)r S, the locking piece is pushed down along the bolty until the projections pass through the passages 15 and into the slots E), whcreulmii the nut and the locking-nut are given a partial turn to the right or the let't, according' as the boltis right or le'lt threaded` until the spring pushes the projection 14 into a pair of opposite locking` notches 10. 'The method just -given will he satisfactory in most cases where the pieces 2 or their equivalent are of wood or other yielding' material. v'hen my invention is applied to metal or other materialof unyielding nature` the locking-nut alone, or-

the loclting-nut and the nut 5 may have to he slightly turned back bet'ore inserting the catch in the locking-nut so that, when the notches l() are brought opposite the projections 14, boththe nuts will be screwed down tight.V

'F0-remove the locking-nut, I prefer to use atented Apr. 9, 1912.

The locking-nut] must 1 a tool such as shown at 17 to push the catch inwardly so that the proieetions 14 Will be beyond the notches 10, whereupon the nut 7 can be rotated until the projectitms come opposite the passages 15. 'l`he catch may then be readily removed and the nuts turned ott the bolt. l

In case the pieces 2 shrink or the mit 5 be.`

comes loose t'or any reason it may be, turned tighter without atecting the locking-nut;A

but the latter may be-readjusted provided it may be. advanced a half turn, or the angle between the passages 15.

Itis clear that, for some purposes the nuts 5 and 7 may be inseparable or integral.

l. Ina nut-lock, a threaded bolt, a nut thereon, a locking-nut screwed on the said nut and having an enlarged axial opening therein, a spring in the opening,and a catch non-rotatively connected to the bolt and releasably connected to the locking nut.V

2. In a nut-lock, a threaded bolt, a nut thereon, a locking-nut connected to the outer end thereof and having communicating axial and side openings, a catch, non-rotatively connected to; the bolt and having its body in the axial opening and locking projections in the .side "openings, and a spring in the axial opening to force the projections toward the outer walls of the side openings.

f 3. In a nut-lock, a threaded bolt, a nut thereon, a locking-nut connected'to the outer end thereof and having communicating axial and side openings, a catch, nonrotatively connected to the bol and having its body in the axial opening and locking projections in the side openings, anda spring in the axial opening to force the projections towardthe outer walls of the side openings, there being recesses in the said wall to receive the said projections. .f

4. In a nut-lock, a threaded bolt, a nut thereon, a locking-nut connected to the outer end thereof and having communicating axial and side openings, the latter having passages leading outwardly to the end of the lockingnut and notches in their outer walls, a catch non-rotatively connected to the bolt andhav ing projections adapted to pass through the said passages and along the said side openings, and a spring in the axial opening to press the said projections outwardly.

Signed at Fayette City, Pa., this 28th day of December, 1911.

JOHN BUTTNER.

Witnesses:

J. C. CRANsI-ronn, A. M. MoCRonY. 

